| 1,6 → 1,11 |
|---|
| #!/usr/bin/python |
| # |
| # Utility for setting frequency of Si570 |
| # Utility for setting frequency of Si570 without a frequency measurement. |
| # The factory calibration is used for changing the frequency. |
| # This utility reset the Si570 to factory default 10 MHz first and than set a new frequency. |
| # |
| # This utility use an USBI2C01A module. |
| # (c) MLAB 2014 |
| |
| import time |
| import datetime |
| 31,12 → 36,12 |
|---|
| ) |
| cfg.initialize() |
| |
| fgen = cfg.get_device("clkgen") |
| fgen = cfg.get_device("clkgen") |
| sys.stdout.write("Frequency will be set to " + sys.argv[2] + " MHz.\r\n") |
| fgen.reset() |
| fgen.reset() # Reset Si570 to 10 MHz |
| time.sleep(3) |
| fgen = cfg.get_device("clkgen") |
| fgen.set_freq(10., float(eval(sys.argv[2]))) |
| fgen = cfg.get_device("clkgen") # Reopen CP2112 |
| fgen.set_freq(10., float(eval(sys.argv[2]))) # Set frequency |
| sys.stdout.write("Done.\r\n") |
| sys.stdout.flush() |
| sys.exit(0) |